Oled touch device

An OLED touch device having at least one OLED and a controller, each of said at least one OLED comprising:

• a first substrate;
• a first electrode located on said first substrate;
• an organic material structure layer located on said first electrode;
• a second electrode located on said organic material structure layer;
• and
• a second substrate located on said second electrode;
• wherein, said control unit is used to apply a combined voltage source across said first electrode and said second electrode of at least one of said at least one OLED to provide a light emitting function and/or a touch detection function, wherein said combined voltage source has a DC voltage component and an AC voltage component, said DC voltage component being used to produce a DC current flowing through said organic material structure layer to provide said light emitting function, and said AC voltage component being used as a touch detection signal, of which a parameter variation is detected by said controller to indicate a touch event, to provide said touch detection function.